EP 1976300 A2 20081001 - Decoder for a transcoding system
Title (en)
Decoder for a transcoding system
Title (de)
Dekoder in einem Transkodierungssystem
Title (fr)
Appareil de décodage dans un système de transcodage
Publication
Application
Priority
- EP 99301795 A 19990310
- JP 5811898 A 19980310
- JP 15724398 A 19980605
Abstract (en)
The present invention provides a decoder in a transcoder for decoding an encoded stream obtained as a result of an encoding process based on MPEG standards which is followed by an encoder. History encoding parameters utilized in a past encoding or past decoding process in relation to the encoded stream are received in the decoder which performs a decoding process on the encoded stream. The decoder selects and outputs encoding parameters from among the history encoding parameters and the current encoding parameters utilized upon production of the encoded stream, the encoding parameters to be utilized in the conversion process into the re-encoded stream as utilization encoding parameters. As a result, the picture quality does not deteriorate even if decoding and encoding processes are carried out repeatedly.
IPC 8 full level
H04N 7/26 (2006.01); H04N 19/40 (2014.01); H04N 7/50 (2006.01)
CPC (source: EP KR US)
H04N 19/10 (2014.11 - US); H04N 19/107 (2014.11 - EP US); H04N 19/115 (2014.11 - EP US); H04N 19/152 (2014.11 - EP US); H04N 19/40 (2014.11 - EP KR US); H04N 19/428 (2014.11 - US); H04N 19/61 (2014.11 - EP US)
Designated contracting state (EPC)
BE DE DK ES FR GB IT NL
DOCDB simple family (publication)
EP 0942605 A2 19990915; EP 0942605 A3 20050831; BR 9900981 A 20000912; BR 9900981 B1 20131203; CA 2265089 A1 19990910; CA 2265089 C 20070710; CN 1178516 C 20041201; CN 1241095 A 20000112; CN 1332565 C 20070815; CN 1549603 A 20041124; CN 1599463 A 20050323; EP 1976300 A2 20081001; EP 1976301 A2 20081001; EP 1988720 A2 20081105; KR 100729541 B1 20070619; KR 100766740 B1 20071012; KR 19990077748 A 19991025; KR 20060069804 A 20060622; US 2003016755 A1 20030123; US 2003128766 A1 20030710; US 2007263719 A1 20071115; US 2008008237 A1 20080110; US 2008013625 A1 20080117; US 2008013626 A1 20080117; US 2008013627 A1 20080117; US 2008232464 A1 20080925; US 6560282 B2 20030506; US 7469007 B2 20081223; US 8638849 B2 20140128; US 8687690 B2 20140401; US 8934536 B2 20150113; US 8938000 B2 20150120; US 8948251 B2 20150203; US 8982946 B2 20150317
DOCDB simple family (application)
EP 99301795 A 19990310; BR 9900981 A 19990309; CA 2265089 A 19990305; CN 200410047403 A 19990310; CN 200410088170 A 19990310; CN 99107664 A 19990310; EP 08013078 A 19990310; EP 08013080 A 19990310; EP 08014594 A 19990310; KR 19990007916 A 19990310; KR 20060043693 A 20060516; US 26573299 A 19990309; US 34205503 A 20030114; US 87924507 A 20070717; US 87940007 A 20070717; US 87940107 A 20070717; US 87940307 A 20070717; US 87940607 A 20070717; US 87940707 A 20070717